From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Overlooked electrical earthing for the 20/25 HP flexible engine mounting.
| Identifier | ExFiles\Box 104\1\ scan0222 | |
| Date | 4th October 1934 | |
| Wyman. What is this scheme? Have you tried it? To Hs.{Lord Ernest Hives - Chair} from E/Lid.{A. J. Lidsey} c. By.{R.W. Bailey - Chief Engineer} re 20/25 HP. Flexible Engine Mounting. We have not seen any reference to the electrical earthing of the engine in connection with flexible engine mounting. We believed this was necessary in view of the fact that the electrical connection from the engine to earth would otherwise be via controls, pipes, and the pedals, none of which are very definite. Instructions were issued for an earthing cable D.54428, but we have not seen a reference to its suitability or behaviour on test. If the earthing wire is to be used we think a standardisation sheet should be circulated; at the moment this item has apparently been overlooked. Rm{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/WST has this job in hand E/Lid.{A. J. Lidsey} Grd Wyman | ||